Liczby niewymierne. 5 1/6-2 6 /7 * 4 1 /5 =  To są ułamki . Prosze Pomoc . !

5 1/6 - 2 6/7  * 4 1/5= =31/6 - 20/7 * 21/5= =31/6 - 4*3= =31/6 -12= =31/6 - 72/6= =-41/6= =-6 5/6

[latex]5frac{1}{6}-2frac{6}{7} * 4frac{1}{5} =5frac{1}{6}-frac{20}{7}*frac{21}{5}=5frac{1}{6}-12=-6frac{5}{6}[/latex]